Home / 7,338.36-10,980.25-4,378.39

Finding the Fourth Proportional to 7,338.36, 10,980.25 and 4,378.39

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Solution

The fourth proportional to 7,338.36, 10,980.25 and 4,378.39 is: 6,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.36 : 10,980.25 = 4,378.39 : x
  2. Step 2: Convert to fraction form
    7,338.36/10,980.25 = 4,378.39/x
  3. Step 3: Cross multiply
    7,338.36x = 10,980.25 × 4,378.39
  4. Step 4: Simplify right side
    7,338.36x = 48,075,816.80
  5. Step 5: Solve for x
    x = 48,075,816.80/7,338.36
  6. Step 6: Final answer
    x = 6,551.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.